docs: add missing required options to ex cmds
docs: add missing required options to ex cmds

Signed-off-by: Patrick Donnelly <d35c2028e065409a3eff47e1b4cba347a9379b4b@redhat.com>

ktdreyer/teuthology,dmick/teuthology,ceph/teuthology,SUSE/teuthology,ktdreyer/teuthology,dmick/teuthology,dmick/teuthology,SUSE/teuthology,ceph/teuthology,SUSE/teuthology